COMET

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Cardiology Carvedilol or Metoprolol European Trial. A trial comparing carvedilol and immediate release metoprolol tartrate on clinical outcome in patients with moderate to severe heart failure
Conclusion Cardiovascular deaths occurred in 29% of carvedilol patients and in 35% of metoprolol patients
ENT Combined microscopic & endoscopic technique. An alternative to the technically demanding endoscopic sinus surgery for chronic sinus diseases, a technique which allows less experienced operators to manage these diseases with fewer complications
References in periodicals archive ?
On Page 6, for example, readers will learn that comets are not the dirty snowballs once imagined, but complex objects with stories to tell.
Comets, often called dirty snowballs, seemed a likely candidate.
Scientists have speculated that comets, essentially giant, dirty snowballs, may be responsible for the water found on some planets.
Professor David Block of Wits University said that comets always visit the skies - they're these dirty snowballs of ice mixed with dust - but never before in history has material from a comet ever been found on Earth.
Comets frequently are called dirty snowballs because they consist mostly of water ice, peppered with rocky debris and frozen gases.